Despite the time-dependent relaxation behavior
of the thermoplastic, only a very small reduction in the value of the internal stress can be expected after seven days.
Within the framework of this article, it was possible to demonstrate that important information on network structure and the polymer-filler interactions can be derived from the thermoelastic properties and the relaxation behavior
of S-SBR-silica vulcanizates.
This experiment studied the relaxation behavior
of coating surface indentation with changing environmental RH and temperature.
of the amorphous components of wood.
We have attempted to rationalize anomalous stress relaxation behavior
of sensitized 304 SS during hydrogen charging.
When various coatings are evaluated, simply judging their performance under the same weathering environment is not reliable since polymer relaxation behavior
depends on the relationship between the exposure temperatures and the [T.
After 300 hours of testing, non-aerated or aerated HNBR had the same stress relaxation behavior
, whereas aeration in silicone had an important effect in reducing sealing force in the same time frame.
Furthermore, the tensile properties, crosslink density, relaxation behavior
, and morphological properties were also examined, in addition to electrical conductivity.
Stress relaxation behavior
was studied to see the changes under varying circumstances.
The proposed test geometry appears to offer a rapid screening test for better understanding of the compressive stress relaxation behavior
of various materials when subjected to virtually any desired service conditions (aging time, fluid and temperature).
min] = 1 MPa, stress (i) increases monotonically with relaxation time (inverse relaxation) in the low-temperature region (T [less than or equal to] 35[degrees]C) and (ii) reveals mixed relaxation behavior
(increases, reaches its maximum, and decreases afterward) in the high-temperature region (T > 35[degrees]C), (iii) positions of the peaks on relaxation curves decrease strongly with temperature, while (iv) peak stresses change non-monotonically with temperature (the maximum peak stress is observed at T = 45[degrees]C).
The stress relaxation behavior
of a polymer contains information on its MWD which as mentioned above lead to attempts to derive MWDs from stress relaxation tests on linear polymers (refs.
It is also extremely essential to take the stress relaxation behavior
of the substrate in process of embossing into consideration while determining the mold temperature and holding duration for P2P TS1 Hot Embossing process.
A polymer with a very narrow MWD is expected to display a relaxation behavior
similar to a single Maxwell element while a polymer with a wider MWD has fast and slow relaxation modes which may be approximated by the generalized Maxwell model.
The model used most widely to characterize relaxation behavior
of curing materials was the generalized Maxwell model.